Isolating Anti-amyloid Antibodies from Yeast-Displayed Libraries

Autor: Alec A, Desai, Jennifer M, Zupancic, Matthew D, Smith, Peter M, Tessier
Rok vydání: 2022
Předmět:
Zdroj: Methods in Molecular Biology ISBN: 9781071622841
Methods Mol Biol
Popis: Conformational antibodies specific for amyloid-forming peptides and proteins are important for a range of biomedical applications, including detecting, inhibiting, and potentially treating protein aggregation disorders ranging from Alzheimer's to Parkinson's diseases. Generation of anti-amyloid antibodies is greatly complicated by the complex, heterogeneous and insoluble nature of amyloid antigens. Here we describe systematic methods for isolating and affinity maturing anti-amyloid antibodies using yeast surface display. Magnetic-activated cell sorting is used to sort single-chain antibody libraries positively for binding to amyloid antigens and negatively against the corresponding disaggregated antigens to remove antibodies that bind in a conformation-independent manner. Isolated lead antibody clones with conformational specificity are affinity matured via targeted CDR mutagenesis and magnetic-activated cell sorting.
Databáze: OpenAIRE